* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
}

html,
body {
    font-size: 14px;
    font-family: 微软雅黑, Helvetica, Arial, Verdana, sans-serif;;
    height: 100%;
    min-width: 1200px;
}

.w {
    width: 1200px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin-bottom: 0.5em;
}